Knowledge point importance calculation method and apparatus

A calculation method and technology of knowledge points, applied in calculations, instruments, electrical digital data processing, etc., can solve the problems of manual labeling, inconsistent standards, and labor-consuming, and achieve the effect of simple and convenient calculations

Inactive Publication Date: 2016-03-02
PEKING UNIV FOUNDER GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that the importance of knowledge points in the prior art needs to be marked manually, the standards

Method used

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  • Knowledge point importance calculation method and apparatus
  • Knowledge point importance calculation method and apparatus
  • Knowledge point importance calculation method and apparatus

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a method for calculating the importance of knowledge points, including the following steps:

[0029] (1) First, obtain all knowledge points as a collection of knowledge points.

[0030] (2) Then, determine the strength of the directed relationship between any two knowledge points in the knowledge point set, and obtain the association degree information of the knowledge points. When calculating the directional relationship strength between any two knowledge points, the way of calculating the relationship strength in the prior art can be used, such as the calculation method of the relationship strength disclosed in the patent CN102622363A. In this way, the relationship strength matrix M is obtained, where M ij Represents the relationship strength from the i-th knowledge point to the j-th knowledge point, and the relationship strength matrix M represents the correlation information between knowledge points.

[0031] (3) Finally, iterate by using ...

Embodiment 2

[0049] In this embodiment, another method for calculating the importance of knowledge points is provided, and the specific process is as follows:

[0050] (1) First, obtain some knowledge points as a knowledge point set O={o 1 ,o 2 ,...,o n}, the number of knowledge points is n, o i is one of the knowledge points, and the name set of knowledge points is X={x i ,i=1,...,n}, the interpretation set of knowledge points is Y={y i ,i=1,…,n}, where x i and y i knowledge point o i name and explanation. Name set X={x for knowledge points i |i=1,...,n} and the interpretation set of knowledge points Y={y i Preprocess the data in |i=1,...,n}, delete special symbol information, such as book title and number, etc. Let the name collection of preprocessed knowledge points be X'={x' i |i=1,...,n}, the interpretation set of preprocessed knowledge points is Y'={y' i |i=1,...,n}.

[0051] (2) Then, determine the strength of the directed relationship between any two knowledge points i...

Embodiment 3

[0072] In this embodiment, a method for calculating the importance of knowledge points is provided. On the basis of Embodiment 1 or 2, a specific method for normalizing matrix A and matrix H is provided. After each calculation of matrix A and matrix H, a normalization is performed. The normalization method is to take the maximum value in the matrix, divide the value of each unit in the matrix by the maximum value, and pass normalization The way, so that the obtained data can intuitively express its relative size.

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Abstract

The invention provides a knowledge point importance calculation method. The method comprises: firstly, obtaining all or part of knowledge points as a knowledge point set; secondly, determining directed relationship strength between any two knowledge points in the knowledge point set, and obtaining association information of the knowledge points; and finally, performing iteration by utilizing the association information, and determining importance information of each knowledge point in the knowledge point set. According to the scheme, the directed relationship strength between a current knowledge point and other knowledge point, and the directed relationship strength between the other knowledge point and the current knowledge point are considered, so that the relationship between the current knowledge point and the other knowledge point can be objectively represented through the two relationships, the importance of the current knowledge point can be objectively reflected, and an objective importance evaluation standard is determined for knowledge points in the fields.

Description

technical field [0001] The invention relates to an analysis method of electrical digital data, in particular to a method and system for calculating the importance of domain knowledge points. Background technique [0002] Digital publishing has become the development trend of the publishing industry. People have shifted from paper reading to electronic reading in large numbers. The encyclopedia in digital publishing resources is a kind of reference book, which is a simple summary of knowledge points in the field. Knowledge points (also called entries or entities) in encyclopedias are usually more detailed than dictionaries, describing the relevant content of domain concepts. Through domain encyclopedias and other digital publishing resources, knowledge can be organized in the form of knowledge points, and a knowledge service system based on knowledge points can be provided. [0003] In modern society, with the development of electronic information technology, the amount of...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 叶茂汤帜徐剑波金立峰马佳乐
Owner PEKING UNIV FOUNDER GRP CO LTD
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